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| Autori principali: | , , , , , , , |
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| Natura: | Preprint |
| Pubblicazione: |
2026
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| Soggetti: | |
| Accesso online: | https://arxiv.org/abs/2601.09906 |
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| _version_ | 1866909990854328320 |
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| author | Carralero, D. Happel, T. Estrada, T. Tokuzawa, T. Martínez, J. de la Luna, E. Cappa, A. García, J. |
| author_facet | Carralero, D. Happel, T. Estrada, T. Tokuzawa, T. Martínez, J. de la Luna, E. Cappa, A. García, J. |
| contents | In this work we present a study on the viability and practicality of installing a Doppler reflectometer (DR) system in the JT-60SA advanced tokamak. First, we discuss its scientific scope in the context of the JT-60SA research plan. We identify a number of fields in which a DR would be very relevant for the accomplishment of said plan and outline a scientific program for the diagnostic. Then, starting from a number of design hypothesis, we use a ray tracing code to carry out a feasibility study for a number of relevant scenarios and identify a geometric solution for the installation of a DR such that both core and edge can be probed in the prescribed wave number range, thus achieving the proposed scientific objectives. Finally, we perform a preliminary discussion on the different possibilities for a conceptual design (including a minimum viable system and a baseline system) and their requirements in terms of components and space. We conclude that a viable conceptual design could be carried out using a small fraction of a horizontal port, leaving room for additional diagnostic systems. |
| format | Preprint |
| id |
arxiv_https___arxiv_org_abs_2601_09906 |
| institution | arXiv |
| publishDate | 2026 |
| record_format | arxiv |
| spellingShingle | A feasibility study for a Doppler Reflectometer System in the JT-60SA tokamak Carralero, D. Happel, T. Estrada, T. Tokuzawa, T. Martínez, J. de la Luna, E. Cappa, A. García, J. Plasma Physics In this work we present a study on the viability and practicality of installing a Doppler reflectometer (DR) system in the JT-60SA advanced tokamak. First, we discuss its scientific scope in the context of the JT-60SA research plan. We identify a number of fields in which a DR would be very relevant for the accomplishment of said plan and outline a scientific program for the diagnostic. Then, starting from a number of design hypothesis, we use a ray tracing code to carry out a feasibility study for a number of relevant scenarios and identify a geometric solution for the installation of a DR such that both core and edge can be probed in the prescribed wave number range, thus achieving the proposed scientific objectives. Finally, we perform a preliminary discussion on the different possibilities for a conceptual design (including a minimum viable system and a baseline system) and their requirements in terms of components and space. We conclude that a viable conceptual design could be carried out using a small fraction of a horizontal port, leaving room for additional diagnostic systems. |
| title | A feasibility study for a Doppler Reflectometer System in the JT-60SA tokamak |
| topic | Plasma Physics |
| url | https://arxiv.org/abs/2601.09906 |